add config table generator script

Author: LordGhostX

scripts/config-table-generator.py

@@ -1,93 +1,80 @@
+import re
 import requests
+from typing import Tuple, Dict, Any
 
+def extract_config_param(line: str, param: str) -> str:
+    return re.split(f'{param}: ', line)[1].strip()[1:].split('"')[0].strip()
 
-def extract_config_param(line, param):
-    return line.split(f"{param}: ")[1].strip()[1:].split('"')[0].strip()
+def remove_extra_char(string: str, char: str) -> str:
+    return string[:-1] if string[-1] == char else string
 
-
-def remove_extra_char(string, char):
-    if string[-1] == char:
-        string = string[:-1]
-    return string
-
-
-def parse_table_heading(line):
-    table_heading = line.split("##")[1].strip()
-    # ensure only config blocks are captured
-    if "config" not in table_heading or "Application-level" in table_heading:
+def parse_table_heading(line: str) -> Tuple[str, bool]:
+    table_heading = re.split('##', line)[1].strip()
+    if 'config' not in table_heading or 'Application-level' in table_heading:
         return None, False
-    else:
-        table_heading = table_heading.title()
+    table_heading = table_heading.title()
 
-    # ensuring heading consistency
-    words = [
-        ("Configuration", "Config"),
-        ("And", "and"),
-        ("Lightpush", "Light Push"),
-        ("Json-Rpc", "JSON-RPC"),
-        ("Rest Http", "REST HTTP"),
-        ("Dns", "DNS"),
-        ("V5", "v5"),
-        ("Websocket", "WebSocket")
-    ]
-    for word in words:
-        table_heading = table_heading.replace(word[0], word[1])
-    return "## " + table_heading, True
+    word_replace_re = re.compile('|'.join([
+        r'(Configuration)', r'(And)', r'(Lightpush)',
+        r'(Json-Rpc)', r'(Rest Http)', r'(Dns)',
+        r'(V5)', r'(Websocket)'
+    ]))
+    word_replace_dict = {
+        'Configuration': 'Config', 'And': 'and', 'Lightpush': 'Light Push',
+        'Json-Rpc': 'JSON-RPC', 'Rest Http': 'REST HTTP', 'Dns': 'DNS',
+        'V5': 'v5', 'Websocket': 'WebSocket'
+    }
+    table_heading = word_replace_re.sub(lambda match: word_replace_dict[match.group(0)], table_heading)
+    return '## ' + table_heading, True
 
-
-def extract_config(config_path):
-    # fetch the config file
-    config_data = requests.get(config_path)
-    if config_data.status_code == 200:
-        config_data = config_data.text.split("\n")
+def fetch_config_file(config_path: str) -> str:
+    config_file = requests.get(config_path)
+    if config_file.status_code == 200:
+        return config_file.text.split("\n")
     else:
         exit("An error occurred while fetching the config file")
 
+def extract_config(config_path: str) -> str:
+    config_data = fetch_config_file(config_path)
+
     config_table = "## Application-Level Config\n\n| Name | Default Value | Description |\n| - | - | - |\n"
     row = {"name": None, "default": "", "description": None}
     for line in config_data:
         line = line.strip()
 
-        # we've left a config block
         if line == "":
-            # check if there's a config
             if row["description"] is not None and row["name"] != "topics":
-                # patch since this config executes Nim
                 if row["name"] == "store-message-retention-policy":
                     row["default"] = "time:172800"
-                # patch as nat config name is missing
                 if row["name"] is None:
                     row["name"], row["default"] = "nat", "any"
                     row["description"] += ". Must be one of: any, none, upnp, pmp, extip:<IP>"
                 config_table += f"| `{row['name']}` | {row['default']} | {row['description']} |\n"
             row = {"name": None, "default": "", "description": None}
 
-        # create a new config config_table
         if line.startswith("## "):
             table_heading, is_valid_heading = parse_table_heading(line)
             if is_valid_heading:
                 config_table += f"\n{table_heading}\n\n| Name | Default Value | Description |\n| - | - | - |\n"
 
-        # extract the config name
         if line.startswith("name:"):
             row["name"] = extract_config_param(line, "name")
 
-        # extract the config default value
         if line.startswith("defaultValue:"):
-            default_value = line.split("defaultValue: ")[1].strip()
+            default_value = re.split("defaultValue: ", line)[1].strip()
             if '""' not in default_value:
                 default_value = f"`{remove_extra_char(default_value, ',')}`".replace('"', "")
                 if "ValidIpAddress.init" in default_value:
                     default_value = default_value.replace("ValidIpAddress.init(", "").replace(")", "")
                 row["default"] = default_value
 
-        # extract the config description
         if line.startswith("desc:"):
             description = remove_extra_char(extract_config_param(line, "desc"), ".").replace("|", "\|")
             row["description"] = description[0].upper() + description[1:]
-    
+
     return config_table.replace(">", "\>")
 
+
 if __name__ == "__main__":
     config_path = "https://raw.githubusercontent.com/waku-org/nwaku/master/apps/wakunode2/config.nim"
     table_data = extract_config(config_path)